Preheat the oven to 350 F.
Butter and flour a 9x9 baking pan or line it with foil.
Beat the eggs until well mixed, then mix in the sugar.
Add the oil, flour, baking powder, salt and almond extract and mix well.
Scrape the batter into the pan and top with the chopped or slivered almonds.
Bake 25-30 minutes, until a toothpick inserted in the middle comes out clean.
Let cool on a wire rack before cutting.