A powdered oil and/or fat that includes a high proportion of a medium-chain fatty-acid triglyceride, has excellent solubility and fluidity, and gives rise to little oil flotation during dissolution. The powdered oil and/or fat includes a medium-chain fatty-acid triglyceride, an octenylsuccinic acid-treated starch mixture, and a dextrin, in which the octenylsuccinic acid-treated starch mixture includes a first octenylsuccinic acid-treated starch of which the viscosity of a 10 mass % aqueous solution at 25° C. is less than 30 mPa·S, and a second octenylsuccinic acid-treated starch of which the viscosity of a 10 mass % aqueous solution at 25° C. is 30 mPa·S or more; the content of the second octenylsuccinic acid-treated starch is 12-45 mass %, inclusive, relative to the entire octenylsuccinic acid-treated starch mixture; the dextrose equivalent weight of the dextrin is 10 or more; and the content of the medium-chain fatty-acid triglyceride is 65-85 mass %, inclusive, relative to the entire powdered oil and/or fat.