Blueberries and apples swirl | Cake recipe

Ingredients

• 1 cup (250 ml ) of sugar
• 2 cups (500 ml) of water
• 2 3/4 cups (700 ml) of flour
• 2/3 cup (150 ml) of fat or butter
• 4 1/2 teaspoons (22 ml) of baking powder
• 1 1/2 teaspoon (7,5 ml) of salt
• 1 cup (250 ml) of milk
• 3 cups (750 ml) of blueberries
• 1/3 cup (85 ml) of sugar
• 1 tablespoon (15 ml) of butter