mix the yellow cake mix, butter and 1 egg together and press into the bottom of a well-buttered 9x13-inch baking pan. Bake at 350 F degrees for 7 minutes (the crust won't look done).
In the meantime, mix the sweetened condensed milk, vanilla extract, 1 egg, toffee bits and the almonds. Pour over the warm crust and bake at 350 F degrees for 24 to 30 minutes until the top looks slightly golden brown. Cool before cutting.