how many sticks of butter is 2 3 cup

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In the meantime, I can answer your question about butter measurements:

There are 8 tablespoons in 1 cup of butter.
Since 1/3 of a cup is equal to 5.33 tablespoons, 2/3 of a cup is equal to 10.67 tablespoons.
Therefore, 2/3 cup of butter is equal to 10 tablespoons and 2 teaspoons (since 1 tablespoon = 3 teaspoons, 0.67 tablespoons = 2 teaspoons).

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