Vanilla cake with chocolate and coffee frosting

Ingredients

• 200 grams (7 cups) flour
• 1 teaspoon baking powder
• 1 gram (pinch) salt
• 180 grams (0.9 cup) sugar
• 3 eggs
• 80 grams (1/3 cup) milk
• 45 grams (3 tablespoons) vegetable oil
• 0.5 teaspoon vanilla paste
• 3 tablespoons boiling water
• 150 grams (2/3 cup) water
• 50 grams (1/4 cup) sugar
• 3 teaspoons instant coffee
• 250 grams (8.8 ounces) mascarpone
• 90 grams (3 ounces) 33% cream
• 30 grams (1/4 cup) powdered sugar
• 80 grams (3 ounces) dark chocolate
• 6 teaspoons syrup
• 170 grams (6 ounces) dark chocolate
• 80 grams (6 tablespoons) butter
• 20 grams (1 tablespoon) honey