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Religiously you can if you're Sephardic, not if you're Ashkenazic. But although Almond flour may even be suggested as a sub for the matzo cake meal, my experience is that the texture will not be much different.
Personally, I (nor my family) don't much like cakes made with the cake meal (Dad dubbed them "sand cakes") and usually make mericnue based or flourless desserts during Passover.
Some pillow talk with a local dietitian.
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