How To Make Kumquat Jam Bars - Best Recipe | Charleston Magazine

Ingredients

• 2 cups sugar, divided
• 2 Tbs. apple pectin
• 1 tsp. kosher salt
• 2 cups kumquat slices, seeds removed (about 2 lbs. whole kumquats)
• 2 cups fresh orange juice
• 3 Tbs. champagne vinegar
• 1/2 vanilla bean, split and seeds scraped
• 1 cinnamon stick
• 1 cup plus 2 Tbs. all-purpose flour
• 3/4 tsp. baking powder
• Pinch kosher salt
• 1 stick unsalted butter, room temperature
• 1/2 cup sugar
• 1 egg yolk
• 1/4 tsp. pure vanilla extract