For the peanut butter simple syrup: Combine the sugar
, peanut butter and 1 cup water in a saucepan
over medium heat until the sugar is dissolved and the mixture has thickened, 5 to 10 minutes. Set aside to cool.
Pour the vodka
liqueur and 1 ounce of the peanut butter simple syrup
into a shaker filled with ice. Shake well until chilled and frothy
. Pour into small up glasses and garnish with a marshmallow
that's been injected/stuffed with the peanut butter. Then try not to eat peanut butter from the jar with your hands.