Plum Tart

Ingredients

• 1/4 pound sweet butter or unsalted margarine
• 1-1/4 cups all-purpose flour
• 1/2 cup sugar
• 1 large egg
• 1/2 lemon, juice and zest
• pinch of salt
• 24 Italian/prune plums, washed, dried, and cut in half and pitted
• 1/4 cup bread crumbs for the pan