Grilled Polenta with Marinara, Parmesan, and Basil: A Complete Guide

Crispy-edged cornmeal cakes offer a perfect balance of smoky flavor and creamy texture.

By Sneha Tete, Integrated MA, Certified Relationship Coach
Created on

If you’re searching for a dish that’s as hearty as it is elegant, grilled polenta with marinara, Parmesan, and basil is the answer. This recipe transforms humble cornmeal into thick, golden slices with crisp, smoky edges, all topped with a tangy marinara sauce and a sprinkle of cheese and herbs. Perfect for gatherings, weeknight dinners, or as an appetizer, this dish brings together rustic Italian comfort food and modern grilling techniques.

Why Grilled Polenta? The Magic of Simple Ingredients

Polenta—a staple of Italy’s northern regions—offers incredible flexibility. While it can be served creamy straight from the pot, its transformation into grilled slices opens up new textures and flavor possibilities. Crisp exteriors, creamy interiors, and bold toppings make grilled polenta both beautiful and crave-worthy.

  • Budget-friendly: Polenta is made with basic pantry ingredients.
  • Make-ahead: Polenta can be prepared in advance, chilled, and sliced when needed.
  • Versatile: Works as an appetizer, side dish, or vegetarian main course.

What You’ll Need

IngredientPurpose
Medium or coarse yellow cornmeal (polenta)Main base, forms the grilled slices
Water (or stock for extra flavor)Cooks and hydrates the cornmeal
Kosher saltSeasoning for the polenta
Butter or olive oilRichness and flavor
Marinara sauceTopping; provides acid and brightness
Freshly grated Parmesan cheeseSalty, savory finish
Fresh basil leavesHerbaceous garnish
Nonstick spray or more olive oil (for grilling)Prevents sticking on the grill

See variations at the end of the article for delicious ideas using mushrooms, roasted vegetables, or different cheeses.

Step-by-Step: How to Cook the Creamiest Polenta

1. Choose the Right Cornmeal

For the best texture, use medium or coarse-ground yellow cornmeal labeled as “polenta.” Fine cornmeal can become gummy and dense when set and grilled.

2. Use the Correct Liquid Ratio

The classic mistake is using too little water, resulting in dense or undercooked polenta. The ideal ratio is five to six parts liquid to one part polenta. Water gives a clean, classic flavor, but for a richer version, try half water and half milk or stock.

  • For 1 cup polenta: use 5 to 6 cups water or stock

3. Cook It Low and Slow

Combine water and salt in a saucepan and bring to a boil. Gradually whisk in your polenta. Reduce heat to low and cook, stirring often, until polenta thickens and the grains are tender (about 40–50 minutes). Toward the end, stir in butter or olive oil for flavor and richness.

Tip: Soaking polenta overnight in its cooking water can reduce the overall cooking time the next day.

4. Taste and Adjust

Check for doneness by tasting—properly cooked polenta should be soft with no gritty texture. If you detect any firmness, add more water and continue cooking.

5. Shape and Chill the Polenta

Line a rimmed baking sheet or shallow pan with parchment or lightly oiled plastic wrap. Pour the hot polenta into the pan and use a spatula to spread it into an even layer, at least 3/4-inch thick. Let cool, then refrigerate until fully set (at least 2 hours or overnight).

Grilling Perfect Polenta Slices

  • Remove polenta slab: Carefully turn the pan upside down onto a cutting board and peel away the parchment.
  • Cut into pieces: Slice polenta into squares, rectangles, or triangles for easy grilling.
  • Preheat your grill: A hot, well-oiled grill ensures proper searing and prevents sticking.
  • Oil the surfaces: Brush polenta pieces on both sides with olive oil or use nonstick spray.
  • Grill until golden: Cook over medium-high or high heat, undisturbed, until deep golden grill marks appear (about 3–5 minutes per side).

Note: Grilled polenta will be crispy on the edges and creamy inside, the mark of success!

Topping It Off: Marinara, Parmesan & Fresh Basil

Making the Marinara

You may use your favorite store-bought marinara or make a quick sauce from sautéed garlic, crushed tomatoes, a pinch of salt, and a splash of olive oil. Simmer until thickened and finish with fresh basil for fragrance and flavor.

Assembling the Dish

  • Place hot grilled polenta slices on a serving platter.
  • Spoon warm marinara sauce over the top.
  • Shower generously with fresh-grated Parmesan cheese.
  • Scatter plenty of torn or sliced basil leaves as garnish.

The combination offers crisp texture, tangy tomato flavor, rich umami from the cheese, and refreshing herbal notes—all in one irresistible bite.

How to Serve Grilled Polenta

  • Appetizer: Serve smaller squares topped with a small spoonful of sauce for finger foods at a party.
  • Side Dish: Pair with grilled meats, sausages, or roasted vegetables.
  • Main Course: Larger slabs and hearty toppings create a satisfying vegetarian entree.

Make-Ahead Tips and Variations

Make-Ahead

  • Cook and chill polenta up to 3 days in advance.
  • Slices can be grilled just before serving for best texture.
  • Polenta can be frozen in slabs for 2–3 months; thaw overnight in the refrigerator before grilling.

Recipe Variations

  • Cheesy Grilled Polenta: Stir shredded mozzarella or asiago into the hot polenta before setting for extra richness.
  • Mushroom Marinara: Add sautéed mushrooms to the sauce for depth and earthiness.
  • Roasted Vegetable Topping: Top grilled slices with a mix of roasted peppers, zucchini, and eggplant.
  • Spicy Kick: Sprinkle with red pepper flakes or drizzle with Calabrian chili oil.

Key Tips for Success

  • Use plenty of water for tender, creamy polenta.
  • Let polenta chill until fully set before slicing and grilling.
  • Oil the grill and polenta to prevent sticking.
  • Don’t rush grilling—wait for deep, golden crusts to develop.

Frequently Asked Questions (FAQs)

Can I use instant or quick-cooking polenta?

Yes, but traditional long-cooked polenta yields the creamiest interior and best flavor for grilling. Quick-cooking versions tend to be less flavorful and can set up too firmly.

How do I store leftover grilled polenta?

Leftovers can be refrigerated in an airtight container for up to 3 days. Reheat in a skillet or oven to restore the crisp edges.

Why is my polenta sticking to the grill?

Make sure your grill grate is very clean, well-oiled, and preheated before adding the polenta. Brush or spray both sides of the polenta with oil immediately before grilling.

Can I bake instead of grill?

Yes. Bake polenta slices on an oiled sheet at 425°F until crisp and golden, flipping halfway.

Nutritional Information

ComponentApproximate per Serving
Calories220
Carbohydrates32g
Protein6g
Fat8g
Fiber2g

Nutrition will vary based on toppings and serving size.

Final Thoughts: Rustic Elegance, Endless Possibilities

Once you master the basics of making and grilling polenta, you’ve gained a foundation for countless recipes and presentations. Dressed up for the holidays or simplified for a quick dinner, grilled polenta with marinara, Parmesan, and basil is a versatile classic that never fails to impress.

Frequently Asked Questions (FAQs)

Q: How do I prevent lumps in my polenta?

A: Gradually whisk the cornmeal into simmering water, stirring continuously. If lumps form, a sturdy whisk can help smooth them out during cooking.

Q: Can I use prepared polenta (the kind in a tube)?

A: Yes. Slice and grill as directed, but note it won’t be as creamy inside as homemade polenta.

Q: Is polenta gluten-free?

A: Yes, polenta is naturally gluten-free. Always check your other toppings or sauces if gluten is a concern.

Related Recipes

  • Creamy Polenta with Gorgonzola and Mushrooms
  • Crispy Fried Polenta Bites with Spicy Tomato Sauce
  • Polenta Lasagna with Roasted Vegetables
Sneha Tete
Sneha TeteBeauty & Lifestyle Writer
Sneha is a relationships and lifestyle writer with a strong foundation in applied linguistics and certified training in relationship coaching. She brings over five years of writing experience to thebridalbox, crafting thoughtful, research-driven content that empowers readers to build healthier relationships, boost emotional well-being, and embrace holistic living.

Read full bio of Sneha Tete