Measure the 1-1/4 cups of milk in a 2 cup measuring cup….then add enough vegetable oil to bring the liquid up to 1-1/3 cups.
It's not specified how much oil that is, but it's very little, probably a tablespoon or two, but just follow the directions, fill the measuring cup to 1 1/2 cups with milk, then add oil to the milk till the level of the liquid comes up to 1 1/3 cups. So you use butter AND oil.
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this is probably a mistype, but just mentioning it's 1 1/4 cup, not 1 1/2 cup.
















