Lightly spray the insides of 7 half-pint mason jars with cooking spray.
Stir together flour, salt, instant coffee granules; set aside.
Lightly beat eggs with a whisk; set aside.
Microwave chocolate and butter in a small bowl for 30 seconds. Stir and repeat heating at 15-second intervals, until the chocolate mixture is melted and smooth.
Whisk in sugar.
Whisk in eggs and vanilla.
Stir in flour mixture.
Stir in chopped creme de menthe candies (if using.)
Divide batter among prepared mason jars.
Instant Pot Instructions
Pour 1 cup of water in the Instant Pot and place a trivet in the Instant Pot.
Place the mason jars on the trivet and loosely cover the mason jars with a piece of aluminum foil, to prevent condensation from dripping in the brownies.
Close the Instant Pot Lid and pressure cook on High Pressure for 20 minutes.
Press Cancel and open the lid. When cool enough to handle, carefully remove the aluminum foil from the Instant Pot, being careful to watch out for the steam.
Carefully remove the mason jars from the Instant Pot.
If there is any condensation on the top of the brownies, carefully dab with a paper towel.
Allow to cool on trivet or cooling rack.
Serve topped with a scoop of vanilla ice cream and garnish with mint leaves, chocolate shavings, berries or nuts.
Oven Instructions
Preheat oven to 350 degrees Fahrenheit.
Prepare brownie batter as above.
Place mason jars on a baking sheet.
Bake the mason jar brownies for 35 to 40 minutes. Check for doneness with a toothpick.
Allow the brownies to cool on a cooling rack for 10 to 15 minutes.
Serve topped with a scoop of vanilla ice cream and garnish with mint leaves, chocolate shavings, berries or nuts.
Notes
Prep time does not include steps that are already accounted for in the ingredient list, e.g. chopped mints, etc.
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