We got this idea from the Hollywood Farmer's Kitchen, which recommends adding one or two slices of dried citrus to bottled water. Although we had added dried peels to hot tea, we had never thought of using whole slices in beverages. It turns out they are incredibly flavorful and pretty, too.
To make orange, lemon, or other citrus slices, cut the fruits very thin and dry them in a dehydrator or in the oven at the lowest setting. Store in an airtight container and add the slices to water, iced tea, or hot tea.
Read more: Dried Citrus Slices at The Farmer's Kitchen
Related: Make This! Mandarin Orange Dust