Bailey's Irish Cupcakes

Step 1
Preheat oven to 350 degrees F (175 degrees C).

Step 2
Line 12 muffin cups with paper liners.

Step 3
Beat butter in a large bowl with an electric mixer until the butter is light and smooth, 2 to 3 minutes; beat in sugar until the mixture is light and fluffy, at least 5 more minutes.

Step 4
Beat in egg yolks one at a time, mixing until each yolk is just combined before adding the next; mix in sour cream and vanilla and almond extracts.

Step 5
Sift flour in a separate bowl with baking powder and salt.

Step 6
Stir flour mixture into the liquid ingredients in thirds, alternating with Irish cream liqueur, until the batter is smooth.

Step 7
Pour batter into the lined muffin cups.

Step 8
Bake in the preheated oven until the cupcakes are golden brown on top and a toothpick inserted into the center of a cupcake comes out clean, 15 to 20 minutes.