The phrase "a sure method of" is correct and usable in written English.
You can use it when describing a reliable or guaranteed way to achieve a particular outcome or result.
Example: "Using a checklist is a sure method of ensuring that all tasks are completed on time."
Alternatives: "a reliable way to" or "an effective means of".
Mr. Greer tells him that he has a sure method of preventing seasickness.
I have to sit by like everybody else and wait.' Hollywood has discovered that filming the inspirational or quirky stories of real people - filleted of their less inspirational and more mundane details - is a sure method of persuading Academy members to part with their votes.
Stevens saw operationism as a sure method of increasing rigor in psychological experiments and discourse, asserting that "to experience is, for the purpose of science, to react discriminately", since these reactions are what science can measure and record publically (quoted in Feest 2005, 136).
One sure method of ensuring repeated victory is to create what is called a garrison constituency: a pocket of housing erected with public funds, with carefully screened residents who will constitute the unbeatable core of the politician's voters.
To be sure, methods of cataloguing and conservation should be modernised, but to remove its books and its walnut bookcases and gut the building would be as barbaric an act as burning the library of Alexandria.
After becoming acquainted with this body of work, Russell abandoned all vestiges of his earlier idealism and adopted the view, which he was to hold for the rest of his life, that analysis rather than synthesis was the surest method of philosophy and that therefore all the grand system building of previous philosophers was misconceived.
Mr. Business Owner found a sure-fire method of picking stocks: Look at a stock chart, find the stocks that had risen the fastest in the past and invest in those.
The Surface Response to Excitation (SuRE) method excites the surface of the structure with a piezoelectric element.
The performance of the SuRE method was evaluated using a low cost Digital Signal Processor (DSP) system, spectrum analyzer, and laser vibrometer.
The inconvenience of using separate sensor(s) is the disadvantages of the SuRE method respect to the impedance method.
