Heat oven to 400°F Combine butter and 1/3 cup sugar in medium bowl. Beat at medium speed, scraping bowl often, until creamy. Reduce speed to low; add 1 1/4 cups flour and almond extract. Beat until well mixed.
Press dough onto bottom and up sides of ungreased 9-inch tart pan with removable bottom. Prick bottom and sides of crust with fork. Bake for 15 to 18 minutes or until light golden brown. Remove crust from oven; arrange peach slices over hot, partially baked crust.
Reduce oven temperature to 350°F Combine all remaining filling ingredients except almonds in small bowl with wire whisk. Pour filling mixture over peach slices; sprinkle with sliced almonds. Bake for 32 to 40 minutes or until crust is golden brown and filling is set. Cool completely. Store refrigerated.
*Substitute 1 (16-ounce) bag frozen sliced peaches, thawed, well-drained. Pat frozen peach slices dry with paper towels thoroughly before placing in tart.