Irish Coffee Cake with Whiskey Caramel Sauce

Bundt Cake

• 6 oz unsalted butter, room temperature, cut into pieces, plus extra to grease
• 8 oz brown sugar
• 5 oz strong brewed coffee, room temperature
• 2 oz Irish whiskey
• 3 large eggs, plus 1 egg yolk, from a large egg
• 1 tsp vanilla extract
• 12 ½ oz all-purpose flour
• 1 tbsp baking powder
• 1 tsp baking soda
• ⅛ tsp salt

Whiskey Caramel Sauce

• 3 oz unsalted butter, cut into pieces
• 3 oz brown sugar
• 2 oz Irish whiskey
• 1 pinch salt
• 2 oz heavy whipping cream