Preheat the oven to 350 degrees F.
In a large bowl, mix the butter and sugar, then add the egg yolk and mix well. Add the flour and almonds and blend well, but keep the mixture a bit crumbly.
Put half the mixture into a greased 13 by 9-inch baking pan. Bake for 20 minutes, and then remove the pan from the oven. Spread the jam evenly over the top, leaving about 1/4-inch from the sides. Crumble the remaining dough evenly over the jam and pat lightly. Bake for another 40 minutes. Serve after cooling.
Professional Recipe: This recipe was provided by a chef, restaurant or culinary professional and makes a large quantity. The Food Network Kitchens chefs have not tested this recipe in the proportions indicated and therefore cannot make any representation as to the results.
Recipe courtesy of Tate's Bake Shop