For the Peach Filling

1. Cut peeled peaches into 1/2 inch pieces.
2. In a small pan over medium-high heat, combine peaches with 1/4 cup sugar.  Stir frequently, and bring to a boil.
3. Continue to cook, stirring frequently, for 7-10 minutes, or until the peaches have mostly broken down and the liquid is reduced, thick and jammy.
4. Remove from heat and set aside to cool slightly.

For the Crumb

1. Preheat oven to 375 degrees, and prepare an 8 by 8 inch baking pan by lightly greasing.
2. In a large bowl, combine flour, sugar, salt, and baking powder.  Stir together.
3. Add cubed butter, and using a pastry cutter, cut the butter into the flour until you have pea-sized bits of flour-coated butter.
4. Add the beaten egg, and stir together.  Use clean hands to bring the mixture together into a crumbly dough.  It should hold together when squeezed.
5. Press a little more than half of the crumb dough into the bottom of the baking pan into an even layer.  Spread the peach filling evenly over the dough.
6. Sprinkle the remaining crumb dough in pieces over the top of the peach filling.
7. Bake for 28-30 minutes or until the top is just beginning to turn golden.
8. Allow to cool completely before cutting into bars.