Banana Split Eclairs

water8 tablespoon butter2 tablespoon sugarpinch salt1 ½ cups bread flour3 large eggs plus 2 egg whites

plus 1 1/2 cup of whole milk½ cup cornstarch½ cup plus 2 tablespoon sugar1 large egg3 large egg yolks¾ cups of banana, mashed (about two medium bananas)pinch of salt4 tablespoon unsalted butter2 teaspoon vanilla

heavy cream½ cup confectioner sugar

chocolate, 65% cacao2 tablespoons heavy cream4 tablespoons powdered sugar, sifted4-5 tablespoons water, warm