Marble Bundt Cake 🥯 - How to make a marble bundt cake - simple, but visually stunning

This cake is a basic butter cake, but it has almost everything: a combination of flavorful, moist vanilla and chocolate batter, a swirl decoration pattern and the marvelous shape thanks to the bundt pan. It’s time to awe your guests if you invite them to your teatime party, or just eat it as a treat in anytime of the day 😁😁😁 Tiktok : https://vm.tiktok.com/ZMRJ48MHo/ 🔪 Special equipment: 10-cup metal tube pan, preferably fluted decorative bundt pan 🌡 Baking temperature: 175 Celsius ⏲. Baking time: 50 to 60 minutes 📝 Ingredients : All-purpose flour : 250gr Potato starch : 45gr Sugar, preferably superfine : 300gr Baking powder : 1 tsp Baking soda : ¾ teaspoon Sea salt : 1 tsp (6gr) Dark chocolate (preferably 60% cacao) : 85gr 6 large egg yolks : 115gr Full-fat sour cream (24% fat) : 240gr Unsalted butter, room temperature 250gr Pure vanilla extract : 2 tsp Chapter: 0:00 : Introduction 0:18 : Cake pan preparation 0:52 : Melting chocolate 1:54 : Mixing cake batter 6:43 : Creating marble effect 8:47 : Baking and cooling 9:02 : Final product