Heat oven to 350°F. Coat large baking sheet with nonstick cooking spray.
Whisk together flour, baking powder and salt in medium-size bowl.
Beat butter, sugar, eggs, rind and extract in large bowl until light and fluffy, 3 minutes. Stir flour mixture into butter mixture, then fruit bits.
Divide dough in half. With lightly floured hands, shape each half into 12 x 2-inch slightly flattened loaf. Place loaves 2 inches apart on sheet.
Bake in 350°F oven 25 minutes, until lightly browned. Let cool on sheets on racks 10 minutes. Place loaves on cutting board. Slice diagonally 3/4 inch thick. Place slices on sheets. Bake 15 minutes, until lightly browned. Cool on racks. Store airtight at room temperature 1 week.