Bourbon-Tea Julep

Combine bourbon and tea bags in a 1-quart mason jar. Let steep 15 minutes. Discard tea bags (or strain mixture, if using loose tea), and return infused bourbon to jar. Add oleo saccharum, mint leaves, and 1 cup ice; cover tightly with lid. Shake vigorously until chilled. Fill 6 chilled mint julep cups with crushed ice; strain mixture into prepared cups. Garnish with mint sprigs.