Ingredients
Yield: 12 muffins
2 3/4 cups (390g) all-purpose flour
2 1/2 tsp baking powder
1/4 tsp baking soda
1/2 tsp salt
1/3 cup (74g) unsalted butter, softened
4 Tbsp (60ml) vegetable oil, divided
1 1/4 cups (265g) granulated sugar
2 large eggs
1 1/2 tsp vanilla extract
3/4 cup (175ml) milk
1/2 cup (122g) sour cream
1 1/4 cups (220g) mini chocolate chips
Preparation
