1Preheat oven to 350 degrees F (175 degrees C). Line 14 muffin cups with liners.
2Mix flour, baking powder, baking soda, and salt together in a bowl.
3Beat sour cream, sugar, eggs, milk, vegetable oil, butter, almonds, poppy seeds, almond extract, apple cider vinegar, and vanilla extract together in a large bowl until smooth; gradually stir flour mixture into the sour cream mixture until just incorporated into a batter. Spoon batter into prepared muffin cups.
4Bake in the preheated oven until a toothpick inserted into the center comes out clean, 20 to 25 minutes.