Peanut Butter and Jelly Muffins

1-3/4 cups flour
2/3 cup brown sugar
2 1/2 tsp. baking powder
1/4 tsp. salt
3/4 cup milk
2/3 cup peanut butter
1/4 cup vegetable oil
1 egg
1-1/2 tsp. vanilla
jam or jelly, any flavor
Mix the flour, brown sugar, baking powder and salt together in a bowl. In a mixer bowl, beat together the milk, peanut butter, vegetable oil, egg and vanilla. Stir the wet ingredients into the dry ingredients with a spoon. (I needed to add another splash of milk at this point, because the batter was too dry and stiff.)

Grease a muffin tin. Put a tablespoon or two of the batter into each cup. Add a teaspoon of jam to the top. Put more batter over the jam to cover it. Bake at 350 degrees for 20-25 minutes. Cool in the pan for 5 minutes before removing