Place the cooked egg yolk and avocado in a blender and puree on low, scrapping down sides until smooth, adding in liquid one tablespoon at a time until you reach your desired consistency.
To make Puree by Hand
Place the cooked egg yolk and avocado in a small bowl or cutting board and mash with a fork until combined, adding in liquid one tablespoon at a time until you reach your desired consistency. This method makes a slightly more chunkier puree.
Notes
Age: 4 months and upYield: roughly 4 ouncesStorage: This puree is best for serving right away, but if you want to store in fridge for up to 2 days, squeeze 1/4 teaspoon of fresh lemon juice into the puree and stir until combined.