Pour 4 envelopes of gelatin into small bowl. Then add 1 cup water and stir until no lumps remain in the gelatin. Give it 5-10 minutes to thicken.
Gently heat 3 cups milk in a pan.
Add 2 cinnamon sticks. Snap them in half for a more pronounced cinnamon flavor.
Add 1½ cups sweetener.
Add 2 cans evaporated milk.
Add 2 teaspoons vanilla.
Stir in the thickened gelatin mixture and stir at medium flame until sweetener and gelatin dissolve.
Remove the cinnamon sticks with a slotted spoon.
Turn off flame and add 1½ cups heavy cream.
If you notice any stray pieces of cinnamon, then run the milk jello through a sieve.
Spray a nonstick cake pan with baking spray.
Pour the milk jello into the cake pan and refrigerate for at least 8 hours or overnight, if possible.