Here is a hearty, moist delicious muffin that hides a little whole wheat in it. A team of 2 students made this batch in a small cooking class I teach. They followed directions perfectly and were rewarded with perfect muffins!
Preheat oven to 375 degrees. Grease a12 cup muffin pan or line with papers and spray the papers with non stick.(apples like to stick to papers).
Mix together the butter, white sugar and 1/4 cup of the brown sugar. Beat until light and fluffy. (the creaming method). Add the eggs and mix well. Gently mix in the buttermilk or yogurt.
Whisk the dry ingredients in a bowl, then add to the batter. Do not over mix. Add the chopped apples. Make sure they are chopped pretty small, like the size of a peanut. If the batter seems too thick, add a tablespoon of milk to it, mixing a bit more. It will be pretty thick.
Divide the batter between the 12 muffin cups and sprinkle the remaining 1/2 cup of brown sugar on top. (if you have extra batter, you can bake it in a small oven proof bowl or cup or another muffin pan.) Bake 25-30 minutes or until a toothpick comes out with only moist crumbs and the top of the muffin is springy when you touch it with your finger. Remove from the oven andc ool 5 minutes in the pan. Then put them on a cooling rack to finish cooling.