Orange Creamsicle Poke Cake

Ingredients

• 1¼ cups heavy whipping cream
• 1 cup boiling water
• 2 tsp pure vanilla extract
• 1/2 cup orange juice
• 1/4 cup confectioners' sugar
• One box vanilla cake mix, plus ingredients on the back of the box to prepare a 13x9 cake
• 3 oz (1 small box) orange gelatin
• 1/2 tsp orange extract, optional but recommended
• 1 can (10.5oz) mandarin oranges, drained and chopped (optional)