Mama’s Onion Squares are a savory and comforting appetizer or side dish that brings a nostalgic, homemade touch to any meal. These golden-brown squares feature a rich, buttery crust topped with a flavorful mixture of caramelized onions, cheese, and a hint of garlic. Perfect for family gatherings, potlucks, or holiday feasts, Mama’s Onion Squares are sure to be a hit with their deliciously simple ingredients and heartwarming taste. Easy to make and even easier to enjoy, these squares are a delightful addition to your recipe collection.
Ingredients:
For the Crust:
- 1 1/2 cups all-purpose flour
- 1/2 cup unsalted butter, chilled and cubed
- 1/2 teaspoon salt
- 1/4 cup cold water (more as needed)
For the Topping:
- 2 tablespoons olive oil
- 4 large onions, thinly sliced
- 2 cloves garlic, minced
- 1 teaspoon salt
- 1/2 teaspoon black pepper
- 1 teaspoon fresh thyme leaves (optional)
- 1 cup shredded Gruyère or Swiss cheese
- 2 eggs, lightly beaten
- 1/2 cup heavy cream
- Fresh parsley, chopped (for garnish)
Instructions:
- Prepare the Crust:
- In a large bowl, combine the all-purpose flour and salt. Cut in the chilled, cubed butter using a pastry cutter or your fingers until the mixture resembles coarse crumbs.
- Gradually add cold water, 1 tablespoon at a time, mixing until the dough comes together. Form the dough into a ball, wrap it in plastic wrap, and refrigerate for at least 30 minutes.
- Caramelize the Onions:
- In a large skillet, heat the olive oil over medium-low heat. Add the thinly sliced onions and cook, stirring occasionally, until they are golden brown and caramelized, about 20-25 minutes.
- Add the minced garlic, salt, black pepper, and fresh thyme (if using), and cook for an additional 2-3 minutes. Remove from heat and let cool slightly.
- Preheat the Oven:
- Preheat your oven to 375°F (190°C). Lightly grease a 9×13-inch baking dish or line it with parchment paper.
- Assemble the Crust:
- Roll out the chilled dough on a lightly floured surface to fit the baking dish. Transfer the dough to the prepared baking dish, pressing it evenly into the bottom and up the sides.
- Add the Topping:
- Evenly spread the caramelized onion mixture over the crust. Sprinkle the shredded Gruyère or Swiss cheese on top.
- In a small bowl, whisk together the beaten eggs and heavy cream. Pour the egg mixture evenly over the onions and cheese.
- Bake:
- Bake in the preheated oven for 25-30 minutes, or until the topping is set and the crust is golden brown.
- Serve:
- Allow the onion squares to cool slightly before cutting into squares. Garnish with fresh parsley if desired.
Enjoy these delightful Mama’s Onion Squares as a savory and comforting addition to any meal, sure to become a family favorite with their rich flavors and homemade goodness.
