Anonymous Modernist 3421

Is there a way of making this recipe with less butter or using olive oil instead, I really love this recipe but eating that much butter every week it is just too much

I tried to make the pressure caramelized ketchup two times in a row but when I opened the pressure cooker both times it was burned on the bottom, I dont know if my pressure cooker takes too long to reach full pressure, I removed it completely from the burner after reaching full pressure and putted it back on low heat to continue the cooking watching carefully to make sure it didnt overheated. I have tried other recipes like salsa marinara and the salsa didn't burn. Anyone knows what can I do?