Preheat oven @350 degree F.
Brush a 9×5 inch baking pan with butter. Set aside.
Combine tutti frutti and flour in a bowl. Toss it well to combine.
Pass the tutti frutti through a strainer to shake off the excess. Set aside.
Combine flour, baking powder, cornstarch, baking soda in a large mixing bowl. Sift the dry ingredients together. Set aside.
Combine oil and sugar in a separate bowl. Using a hand mixer, beat sugar and oil until thoroughly combined.
Pour in milk and almond extract. Add milk in batches. With an electric mixer, mix on low speed.
Spoon in flour mixture and mix until just combined.
Scrape down the sides of the bowl to ensure that the batter is evenly combined. Add dusted tutti frutti to the batter. Fold in gently and do not overmix.
Pour the batter in the prepared greased pan. Using a spatula, spread the batter evenly in the pan. Now, sprinkle some more tutti frutti over the top of the batter.
Bake for 45- 50 minutes to an hour or until the toothpick comes out clean.
Remove the cake from the oven. Let it rest in the pan for 5-10 minutes. After that, run a butter knife around the edges of the cake to loosen it from the sides of the baking pan.
Carefully flip the cake onto a clean plate. Let the cake cool completely before slicing.