Betty used 2 cups of sugar in her cheesecake, so she used 2 * 1 = <<2*1=2>>2 times her ratio.
Thus, she used 2 * 4 = <<2*4=8>>8 cups of cream cheese.
She uses 1 teaspoon of vanilla for 2 cups of cream cheese, so she used 8 / 2 = 4 teaspoons of vanilla.
For each teaspoon of vanilla, she uses 2 eggs, so she used 2 * 4 = <<2*4=8>>8 eggs.
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