Divide the oats between two small jars or containers with lids (10oz/295ml size works well)
To each jar, add 1 tablespoon chia seeds, 1 tablespoon maple syrup, ½ teaspoon vanilla, and a small pinch of salt
Add ¾ cup plant milk to each jar
Divide the lemon zest and juice between the two jars
Stir each jar thoroughly until all ingredients are well combined
Seal the jars tightly and refrigerate overnight or for at least 6 hours
When ready to serve, crumble the graham crackers or digestive biscuits over the top
Add any optional toppings as desired
Enjoy directly from the jar or transfer to a bowl