Ella's Letter to Leonie

The key to decrypting this letter is the smoothie recipe.

Pay attention to the numbers in the smoothie recipe.

This letter is encrypted using a skip cipher. Skip ciphers work by "skipping" words in a letter (i.e. only reading certain words). Find the numbers in the smoothie recipe, then read out the corresponding words in the message in order.

For example, if the first two keys in this skip cipher were 3, 6, you'd read the 3rd word in the encrypted message, then the 6th word after that (i.e. count 6 words after reading the 3rd word). In this message, the 3rd word is "a" and the 6th word after "a" would be "niece" (Note: the first two keys for this message aren't 3 and 6. This is just an example.)

To decrypt the letter, read the following words: 4, 1, 9, 1, 1, 7, 6, 1, 20

Decrypted the letter reads: "great idea I'll slip it in her drink later"