Add blueberries and maple syrup to a small pan and bring to a boil over medium heat. Lower heat to a simmer and cook until blueberries begin to burst. You can help them along by pressing them against the side of the pan with the back of a spoon. Set aside to cool.
Whisk together Greek yogurt, almond milk, vanilla extract, and lemon zest. Add oats, chia seeds, and salt, and mix until well combined.
Layer oat mixture with blueberry mixture in a serving container or jar. Refrigerate overnight or up to 3 nights. I like to heat mine in the microwave for 30 seconds before serving. Top with extra Greek yogurt and lemon zest before serving, if desired.
Notes
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