Answer:
2 Batches
Step-by-step explanation:
She can make 2 batches of cookies because since the recipe calls for 1 egg and she has 2 eggs that means she can do 2 bathces of cookies. She could've done 3 batches if she had 3 eggs because she has triple the ingredients needed to make a batch of cookies.
(You didn't give us the information of how many cookies can be made in one batch so yeah.)