Chocolate courgette fudge cake

Ingredients

• 3 cups grated courgette (approximately 2 large or 3 medium courgettes)
• 100 grams butter
• 1 1/4 cup sugar
• 1 cup apple puree or unsweetened apple sauce
• 2 teaspoons instant coffee powder or granules
• 2 teaspoons vanilla essence
• 2 eggs
• 1/2 cup sour cream, buttermilk or yoghurt
• 2 1/2 cup plain flour
• 3/4 cup cocoa
• 1 teaspoon baking soda
• 1/2 teaspoon baking powder
• 1/2 teaspoon salt
• 1 cup chocolate chips
• Chocolate glaze
• 3 tablespoons butter
• 1 tablespoon liquid glucose
• 120 grams good dark eating chocolate
• 1/4 teaspoon vanilla essence