Name: Perfect Gingerbread Muffins
Ingredients: 6 Tbsp unsalted butter, softened; 3/4 cup packed dark brown sugar; 1/3 cup sour cream; 1/3 cup plain yogurt; 1/2 cup buttermilk; 2 eggs; 2 heaping Tbsp molasses; 1 1/2 cups all-purpose flour; 1/2 cup oat flour; 1 tsp baking soda; 1/2 tsp baking powder; 3/4 tsp ginger; 1/4 tsp cinnamon; 1/4 tsp cloves; 1/4 tsp nutmeg; 1/4 tsp allspice; 1/4 tsp salt; Streusel Topping:; 1/4 cup all-purpose flour; 1/4 cup packed dark brown sugar; 1/2 cup chopped pecans; 2 Tbsp cold butter, cut in cubes