Sift together the flour, baking powder, baking soda and salt.
Beat the eggs until thick. Gradually add sugar and beat well. Add the butter and peanut butter and mix well.
Fold in the flour mixture and the raisins. Pour batter into two greased disposable pans (6 × 6 × 2inches). Bake for twenty-five to thirty minutes. Cool, then cut into squares. The chews may be frosted with Orange Frosting.