1. Prepare an 8-inch baking pan, line it with aluminum foil, and spray the inner wall of the foil with butter spray.
2. Stir and bake the brownie powder according to the package instructions.
3. Let the brownie cool down completely, about 1.5 hours.
4. Remove the brownie from the baking tray and cut into triangles. (Cut three rows, then cut in alternating diagonal lines, as shown in the photo).
5. Prepare white vanilla frosting and green food coloring.
6. Stir the white vanilla frosting well, slowly add the green food coloring, and continue to stir until it turns into the green you like.
7. Pour the green cream into a zip lock bag.
8. Seal and cut a small mouth at the bottom.
9. Gently squeeze the green cream on the triangular brownie, which is curved and jagged, and the Christmas tree has begun to take shape.
10. Place a small star on the top of the Brownie Christmas tree and sprinkle some colorful dots on the tree body.
11. Use a knife to cut the candy bar into 3-5 pieces, insert the sharp end into the bottom of the brownie triangle, and the brownie christmas tree is complete.
