FOR THE MUFFINS
1/2 cup (1 stick) unsalted butter, room temperature plus more for pans
1 3/4 cups all-purpose flour (spooned and leveled), plus more for pans
2 teaspoons baking powder
1 teaspoon baking soda
1 cup sour cream
1 cup granulated sugar
1 teaspoon pure vanilla extract
2 large eggs
Confectioners' sugar, optional
2 cups of Chocolate Chips
Preheat oven to 180'c. Prepare muffins: Butter and flour a jumbo 12-cup muffin tin (or two 6-cup muffin tins). In a small bowl, whisk together flour, baking powder, and baking soda; set aside.
Using an electric mixer on medium speed, beat together butter, sour cream, granulated sugar, and vanilla until light and fluffy. Beat in eggs, one at a time, until well combined. With mixer on low, beat flour mixture into butter mixture. Add chocolate chips.
Divide half the batter among prepared muffin cups. Bake 25 to 30 minutes or until a toothpick inserted in center of a muffin comes out clean. Cool in pan 5 minutes, then transfer to a wire rack to cool completely. Dust with confectioners' sugar, if desired