Banana Bread Without Baking Powder

How can I make baking powder without cream of tartar?

I have milk, honey, etc. And baking soda. I'm making banana bread. Any ideas?

1 tsp of baking powder, = 1/4 tsp baking soda + 1/3 cup sour milk.
But adjust your other liquids accordingly.

PAN DE PLÁTANO CASERO /no tires tus plátanos maduros,homemade banana bread


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