No particular berries, mind you.
From the box of A.D. from Lutz, Florida, by way of Pennsylvania in the 1940s, and originating in Ohio in the 1920s.
1/4 c. butter
1/4 c. sugar
3/4 c. milk or water
2 c. flour
3 tsp. baking powder
1/8 tsp. salt
1 cup berries, washed and drained]
Cream 1/4 c. butter with 1/4 c. sugar.
Add 1 egg well beaten, 3/4 cup milk or water, 2 c. flour sifted with 3 tsp. of baking powder, and 1/8 tsp.salt.
Add 1 cup washed and drained berries. Beat well.
Divide into greased and floured muffin pans. Bake 20 minutes in a moderate oven.