Mix 1 ⅓ cup flour, baking powder, and salt, set aside.
In a separate bowl, mix ¾ of a can of dulce de leche with 1 scant cup powdered sugar and 200g room temperature butter until fluffy.
Add 2 eggs and mix well at a rather high speed until fluffy.
Gradually add the dry ingredients to the wet ingredients and mix until just combined without beating too hard.
Transfer half of the dough into a well-greased bundt pan.
Spoon in the rest of the dulce de leche and pour on the rest of the dough.
Bake at 180°C for 30 minutes or until a toothpick inserted in the center comes out clean.
The recipe makes 1 bundt cake. For twice the amount, it fills our bundt cake mold and 4 muffin molds.
The core temperature should be 98°C.