Biscuit Topping. Whisk together flour, sugar, baking powder, baking soda, and salt in a large bowl. Dice butter into 1/2-inch peices; sprinkle flour mixture and use a pastry cutter to cut in evenly until mixture resembles coarse meal. Combine yogurt, almond milk, and vanilla in a small bowl; add to flour mixture and stir just until moist. Lightly flour hands and knead mixture 3 or 4 times in the bowl, just until dough comes together.